(N/A) In domestic circuits,series arrangement is not used because of the following reasons:
$(i)$ The total potential difference available (usually $220 \ V$) is divided between various appliances in the circuit according to their resistances since the current flowing through all the appliances is the same. Thus,each appliance will not get the required potential difference for it to operate properly.
$(ii)$ If one of the appliances is out of order,$e.g.$,if a bulb gets fused,all the appliances in the circuit will stop working as the circuit gets broken.
$(iii)$ All the appliances will work simultaneously whether we want them to work or not,thereby involving a lot of power wastage.
$(iv)$ If we switch off any one of the appliances,the circuit is broken and all the appliances will stop working.